AUGUSTA, Maine (WABI) - Governor Janet Mills is expected to announce her run for the U.S. Senate on Tuesday, October 14th.

That’s according to people familiar with Mills’ plans who told the Associated Press.

77-year-old Mills was reportedly urged to run by national party leaders.

Mills’ entry into the race could set up a potential match-up with Senator Susan Collins next year.

Collins has held her Senate seat since 1997.

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